Introduction to SQL Which of the following do you need to consider when you make a table in SQL? Primary keys All of these Data types Default values Primary keys All of these Data types Default values ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which command undo all the updates performed by the SQL in the transaction? TRUNCATE ROLLBACK DELETE COMMIT TRUNCATE ROLLBACK DELETE COMMIT ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which of the following query finds the names of the sailors who have reserved at least one boat? SELECT DISTINCT s.sname FROM sailors, reserves WHERE s.sid = r.sid; SELECT DISTINCT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; SELECT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; None of These SELECT DISTINCT s.sname FROM sailors, reserves WHERE s.sid = r.sid; SELECT DISTINCT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; SELECT s.sname FROM sailors s, reserves r WHERE s.sid = r.sid; None of These ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL Which operator performs pattern matching? BETWEEN operator None of these LIKE operator EXISTS operator BETWEEN operator None of these LIKE operator EXISTS operator ANSWER DOWNLOAD EXAMIANS APP
Introduction to SQL SQL is: an operating system. a programming language. a data sublanguage. a DBMS. an operating system. a programming language. a data sublanguage. a DBMS. ANSWER DOWNLOAD EXAMIANS APP
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